The special effects are so bad in “Star Trek III: The Search for Spock” (1984), I don’t know whether to launch a withering criticism or complement the filmmakers for re-creating the lousy SFX from the original TV show. Animatronic spacedogs, burning tumbleweeds, fake snow, scientific fraudulence, it’s a tour de force. Not so much for the cast, which chases another fat paycheck by going through the same motions of overacting and heavy-handed symbolism we saw so many times before. Spock died in the previous flick, but Kirk forgot to retrieve the hard drive, so to speak. Hijinks (and Klingons) ensue.